Home / 72,114.59-99,518.13-40,283.49

Finding the Fourth Proportional to 72,114.59, 99,518.13 and 40,283.49

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Solution

The fourth proportional to 72,114.59, 99,518.13 and 40,283.49 is: 55,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114.59 : 99,518.13 = 40,283.49 : x
  2. Step 2: Convert to fraction form
    72,114.59/99,518.13 = 40,283.49/x
  3. Step 3: Cross multiply
    72,114.59x = 99,518.13 × 40,283.49
  4. Step 4: Simplify right side
    72,114.59x = 4,008,937,594.67
  5. Step 5: Solve for x
    x = 4,008,937,594.67/72,114.59
  6. Step 6: Final answer
    x = 55,591.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.